The Doom Dragon is the final boss of Golden Sun: The Lost Age, and consequently the GBA duology of the Golden Sun series. Unlike the final bosses of the first and third games, which force the player to fight a preliminary battle against multiple characters at once, the Doom Dragon is presented as a series of three similar boss battles in a row, each against a different form of the boss. The boss starts out in a three-headed form capable of mostly weak Psynergy, but once it becomes its two-headed form, it begins using a devastating summon sequence called Cruel Ruin, which deals additional damage to a given party member based on their maximum HP. Near the end of the battle, when both of its "side-heads" are cut off, it additionally becomes capable of the crippling Djinn Storm, which puts every Djinni on every party member currently in the front line into Recovery mode. When it is defeated, a series of cutscenes will eventually bring the party back to the nearby village of Prox, where the final cutscenes leading to the ending credits can be initiated. While saving the game as a Clear Data File does not serve a function similar to the Data transfer system from the first game, the file can be used to unlock Easy Mode and Hard Mode, as well as every song in the hidden music player function in the Battle Mode lobby.
...that in The Lost Age, disembarking at the lowest part of the beach immediately southwest Loho lets you explore much of the overworld land in Golden Sun, but none of the original game's locations can be entered? (e.g. when you try to enter Vale, you stay on the overworld and look like you're walking all over it)
...that in The Lost Age holding down the Select button while highlighting an equippable item in a shop brings up a menu that lets you check its Item Details?
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